Question

Опыты с часами 1. Надуй воздушный шар. Возьми часы. Послушай тиканье часов через воздушный шар. Сделай вывод о звуках, которые удалось услышать. Запиши вывод. 2. Наполни воздушный шар водой. Послушай тиканье часов через шар с водой. Сделай вывод о звуках, которые удалось услышать. Запиши вывод. 3. Положи часы на парту. Приложи ухо к парте. Сделай вывод, Озвуках, которые удалось услышать. Запиши вывод, 4. Обсуди свои выводы с одноклассниками. Через какую среду звук распространяется быстрее? Запиши вывод. .​

Answer 1

1. Воздушный шар - усилитель звука.

2.Вода - усилитель звука.

3. Парта - усилитель звука.

4. Звук распространяется быстрее через закрытую среду.

Answer 2

Experiment 1: Inflated Balloon and Ticking Clock

When you inflate a balloon and listen to the ticking of a clock through the balloon, you may notice that the sound is muffled or distorted. This is because the balloon acts as a barrier that dampens the sound waves produced by the clock. The rubber material of the balloon absorbs and disperses the sound waves, resulting in a decrease in the volume and clarity of the ticking sound.

Conclusion: The sound heard through the inflated balloon is muffled and less clear compared to listening to the clock directly without any barrier. [[1]]

Experiment 2: Water-Filled Balloon and Ticking Clock

If you fill a balloon with water and listen to the ticking of a clock through the water-filled balloon, you may observe that the sound is further muffled compared to the inflated balloon. The water inside the balloon adds an additional barrier for the sound waves to travel through. Water is denser than air, and its presence in the balloon further absorbs and disperses the sound waves, resulting in a greater decrease in the volume and clarity of the ticking sound.

Conclusion: The sound heard through the water-filled balloon is even more muffled and less clear compared to the inflated balloon. [[2]]

Experiment 3: Clock on the Desk and Listening with Ear on the Desk

When you place the clock on the desk and listen to it by placing your ear on the desk, you may notice that the sound is transmitted more clearly. This is because the desk acts as a solid medium that allows sound waves to travel more efficiently. The vibrations produced by the ticking of the clock are transmitted through the desk, and when you place your ear on the desk, you can hear the sound more directly.

Conclusion: The sound heard by placing the ear on the desk is clearer compared to listening to the clock through a balloon or water-filled balloon. [[3]]

Experiment 4: Discussing Conclusions with Classmates

After conducting these experiments and drawing conclusions about the different mediums through which sound travels, you can discuss your findings with your classmates. Based on the experiments, it can be concluded that sound travels faster through solid mediums, such as the desk, compared to gaseous mediums like air or balloons filled with air or water.

Conclusion: Sound travels faster through solid mediums compared to gaseous mediums. [[4]]

Please note that the conclusions drawn from these experiments are based on the general principles of sound propagation and may vary depending on the specific conditions and materials used in the experiments.